Primary stability of the Activ L® intervertebral disc prosthesis in cadaver bone and comparison of the keel and spike anchoring concept
| Autor: | von Schulze Pellengahr, Christoph, Teske, Wolfram, Kapoor, Saurabh, Klein, Alexander, Wegener, Bernd, Büttner, Andreas, Lahner, Matthias |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Lumbar Vertebrae
Spikes Prostheses and Implants Diseases of the musculoskeletal system Aesculap ActivL Biomechanical Phenomena RC925-935 Micromotions Cadaver Humans Primary stability of intervertebral disc prosthesis ddc:610 Range of Motion Articular Anchoring concept Intervertebral Disc Research Article Keel |
| Zdroj: | BMC Musculoskeletal Disorders, Vol 22, Iss 1, Pp 1-9 (2021) BMC Musculoskeletal Disorders |
| ISSN: | 1471-2474 |
| Popis: | \(\bf Background\) High primary stability is the key prerequisite for safe osseointegration of cementless intervertebral disc prostheses. The aim of our study was to determine the primary stability of intervertebral disc prostheses with two different anchoring concepts – keel and spike anchoring. \(\bf Methods\) Ten ActivL intervertebral disc prostheses (5 x keel anchoring, 5 x spike anchoring) implanted in human cadaver lumbar spine specimens were tested in a spine movement simulator. Axial load flexion, extension, left and right bending and axial rotation motions were applied on the lumbar spine specimens through a defined three-dimensional movement program following ISO 2631 and ISO/CD 18192-1.3 standards. Tri-dimensional micromotions of the implants were measured for both anchor types and compared using Student’s T-test for significance after calculating 95 % confidence intervals. \(\bf Results\) In the transverse axis, the keel anchoring concept showed statistically significant (\(\it p\) |
| Databáze: | OpenAIRE |
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